Finding the Fourth Proportional to 12,785,408.33, 19,177,981.26 and 7,390,626.08
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Solution
The fourth proportional to 12,785,408.33, 19,177,981.26 and 7,390,626.08 is: 11,085,863.26
Step by Step Solution
- Step 1: Write the proportion equation
12,785,408.33 : 19,177,981.26 = 7,390,626.08 : x - Step 2: Convert to fraction form
12,785,408.33/19,177,981.26 = 7,390,626.08/x - Step 3: Cross multiply
12,785,408.33x = 19,177,981.26 × 7,390,626.08 - Step 4: Simplify right side
12,785,408.33x = 141,737,288,461,907.28 - Step 5: Solve for x
x = 141,737,288,461,907.28/12,785,408.33 - Step 6: Final answer
x = 11,085,863.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.